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Data source: Environmental Protection Agency
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Air pollution in Clarksville, Tennessee correlates with...

VariableCorrelationYearsSys. Score
Bachelor's degrees awarded in Legal professionsr=0.9110yrs296
The number of career/technical education teachers, secondary school in Tennesseer=0.8513yrs276
Associates degrees awarded in Educationr=0.8711yrs259
The divorce rate in Tennesseer=0.8323yrs250
How clickbait-y PBS Space Time YouTube video titles arer=0.899yrs250
Barclays' stock price (BCS)r=0.8122yrs244
Deutsche Bank Aktiengesellschaft's stock price (DB)r=0.8122yrs244
The marriage rate in Tennesseer=0.7923yrs242
Physical album shipment volume in the United Statesr=0.8324yrs230
Gasoline pumped in Croatiar=0.7930yrs228
The number of prepress technicians and workers in Tennesseer=0.8420yrs227
The number of proofreaders in Tennesseer=0.8419yrs226
U.S. intercountry adoptionsr=0.823yrs224
Petroluem consumption in Croatiar=0.7630yrs224
Fossil fuel use in Czechiar=0.7429yrs222
The yearly batting average of the New York Yankeesr=0.6341yrs216
Popularity of the first name Jaylanr=0.8234yrs216
Number of edits to the Wikipedia article for Thanksgivingr=0.8316yrs216
Asthma attacks in American childrenr=0.7423yrs210
The number of movies Kirsten Dunst appeared inr=0.7134yrs209
Banco Bilbao Vizcaya Argentaria's stock price (BBVA)r=0.7622yrs207
GMO use in cottonr=0.7923yrs206
Popularity of the first name Shaniahr=0.7633yrs206
US household spending on clothin for womenr=0.8123yrs206
US average milk-fat content of cottage cheeser=0.8322yrs204
US household spending on clothingr=0.823yrs204
US household spending on clothing for menr=0.823yrs204
US average milk-fat content of milk fat and skim solids byproduct fluid beverage milkr=0.8222yrs203
Portion of all US dairy skim-solids allocated to the production of frozen dairy productsr=0.8122yrs202
Popularity of the first name Daijahr=0.7333yrs202
US household spending on fresh milk and creamr=0.7923yrs202
Viewership count of American Idol Season Finaler=0.7821yrs194
Asthma prevalence in American childrenr=0.7817yrs190
Kerosene used in Eswatinir=0.7133yrs189
Google searches for 'daylight savings time'r=0.7720yrs188
Google searches for 'President phone number'r=-0.8320yrs188
Google searches for 'i have the flu'r=-0.8620yrs188
Cigarette Smoking Rate for US adultsr=0.7621yrs186
Customer satisfaction with Southwest Airlinesr=-0.7328yrs184
Lloyds Banking Group's stock price (LYG)r=0.7522yrs176
Asthma attacks in American childrenr=0.6523yrs176
GMO use in cotton in Tennesseer=0.8118yrs174
Popularity of the first name Maliquer=0.7234yrs172
US birth rates of triplets or morer=0.7620yrs172
Total employee count at Continental AGr=-0.8524yrs172
Customer satisfaction with Whirlpoolr=0.6128yrs172
US household spending on mortgage interest and chargesr=0.7823yrs171
xkcd comics published about romancer=0.7817yrs171
US average milk-fat content of frozen dairy productsr=0.822yrs170
GMO use in cottonr=0.7523yrs170
US household spending on prescription drugsr=0.7723yrs170
U.S. direct investment abroadr=-0.8322yrs168
Global Per Capita Rice Consumptionr=0.7820yrs168
US household spending on floor coveringsr=0.7623yrs168
Popularity of the 'all your base' memer=0.7318yrs166
Total Revenue of the NFL Teamsr=-0.8420yrs165
HSBC Holdings' stock price (HSBC)r=0.7422yrs164
The number of human resources assistants in Tennesseer=0.820yrs161
Popularity of the first name Dajahr=0.7132yrs158
Google searches for 'oprah winfrey'r=0.7620yrs156
UBS Group AG's stock price (UBS)r=0.7422yrs154
The number of postmasters in Tennesseer=0.7920yrs150
Fossil fuel use in Slovakiar=0.7229yrs150
US production of fluid beverage milkr=0.7722yrs148
Popularity of the first name Madisenr=0.6737yrs147
Citigroup's stock price (C)r=0.7422yrs144
The number of postal service machine operators in Tennesseer=0.7920yrs140
Liquefied petroleum gas used in Greenlandr=0.7822yrs138
GMO use in cottonr=0.7323yrs136
Popularity of the first name Jalynr=0.6341yrs135
AIG's stock price (AIG)r=0.7422yrs134
US dairy skim solids used to produce milk fat and skim solids byproduct fluid beverage milkr=0.7522yrs134
The number of library technicians in Tennesseer=0.7720yrs126
Google searches for 't-rex'r=0.7620yrs126
Geothermal power generated in Thailandr=0.6732yrs125
US production of cottage cheeser=0.7322yrs122
The number of payroll and timekeeping clerks in Tennesseer=0.7720yrs116
US dairy skim solids used to produce cottage cheeser=0.7422yrs112
Gasoline pumped in Czechiar=0.6830yrs112
Gasoline pumped in Irelandr=0.5941yrs99
Banco Santander's stock price (SAN)r=0.722yrs98
Gasoline pumped in U.S. Virgin Islandsr=0.5940yrs88
Portion of all US dairy skim-solids allocated to the production of fluid beverage milkr=0.7922yrs88
Weyerhaeuser Company's stock price (WY)r=0.6922yrs86
The number of data entry keyers in Tennesseer=0.7620yrs85
US production of cheese (other than cottage cheese)r=-0.8222yrs75
BP's stock price (BP)r=0.6522yrs74
Biomass power generated in Indiar=-0.8723yrs72
US milk fat used to produce cheese (excluding cottage cheese)r=-0.8222yrs65
Sumitomo Mitsui Financial Group's stock price (SMFG)r=0.6920yrs63
Jet fuel used in Eswatinir=-0.7340yrs62
US production of dry milk products (net)r=-0.8122yrs54
ING Groep's stock price (ING)r=0.6622yrs52
Petroluem consumption in Kazakhstanr=-0.8230yrs52
Petroluem consumption in Russiar=-0.8330yrs42
Wind power generated in Czechiar=-0.8522yrs30
Wind power generated in Polandr=-0.827yrs20
Hydopower energy generated in Greenlandr=-0.8223yrs8
Biomass power generated in Mozambiquer=-0.8322yrs-2
Biomass power generated in Sloveniar=-0.8323yrs-12
Wind power generated in Switzerlandr=-0.826yrs-22


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You caught me! While it would be intuitive to sort only by "correlation," I have a big, weird database. If I sort only by correlation, often all the top results are from some one or two very large datasets (like the weather or labor statistics), and it overwhelms the page.

I can't show you *all* the correlations, because my database would get too large and this page would take a very long time to load. Instead I opt to show you a subset, and I sort them by a magic system score. It starts with the correlation, but penalizes variables that repeat from the same dataset. (It also gives a bonus to variables I happen to find interesting.)
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